20390901

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5099}}^1$

素因数の和:5176

約数の個数: 16

約数和(自身を含む): 28723200

約数和(自身を除く): 8332299

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5099, 15297, 158069, 219257, 474207, 657771, 6796967, 20390901]

約数ペア:

[(1, 20390901), (3, 6796967), (31, 657771), (43, 474207), (93, 219257), (129, 158069), (1333, 15297), (3999, 5099)]